Mariusz Ozimek, Robert Staszkiewicz, Robert Rokowski and Arkadiusz Stanula

exhaustion. The result of this test was expressed by the time the subject could hold on. In the second test (PULL UPS), the maximum number of pull-ups completed by the subject was recorded, but for a pull-up to be credited, it had to be performed in accordance with the International Physical Fitness Test rules ( Quaine and Vigouroux, 2004 ).
Statistical analysis
After the results of the tests were processed with descriptive statistics (the arithmetic mean and measures of variance), rank correlation coefficients were calculated (Pearson’s r) to determine whether

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